Disclosed is a process for producing a (poly)thiol compound fo an optical material. The process comprises reacting an organic (poly)halogen compound or a (poly)alcohol compound with thiourea to produce an isothiuronium salt and hydrolyzing the isothiuronium salt to thereby produce the (poly)thiol compound, wherein the thiourea has a calcium content of not more than 1.0 wt %.
本发明公开了一种用于生产光学材料的(多)
硫醇化合物的工艺。该工艺包括将有机(多)卤素化合物或(多)醇化合物与
硫脲反应生成异
硫脲盐,并
水解异
硫脲盐从而生成(多)
硫醇化合物,其中
硫脲的
钙含量不超过 1.0 wt %。